- memory org. needs to be tackled
- architectural considerations written
    - exc/int/trap
    - CLINT
    - M ext.
    - Zicsr ext.
    - BP
- (TODO) conclusion at end of chapter 2
- questions:
    - diagrams for memory system?
    - writes to instr. memory? (relevant for Zifencei impl.)
    - what would Zifencei really do in MiRiV?
